Salem leon sghleppy



Feb. 20, 1923.-

. 1,445,72l S. L.. SCHLEPPY PUMP FiledNov. 18, 1920 i 5 shets-sheet 2Patented Feb. 2G, i923.

SALEM LEON SCHLEPPY, OF CHICAGO, ILLNOIS.

PUMP.

Application filed November 18, 1.920.

To alt 'whom it may cof/werft.'

Be it known that I, SALEM LEON Soiimirrr a citizen of the United States,residing at Chicago, in the countyT of Cool; and State of Illinois, haveinvented certain new and 20 um s havino an' intermittent deliver P P e YMy invention contemplates the use of a series of impeller vanes drivencontinuously and uniformly,' drawing fluid between them,

and acted upon by meanswhich greatly de- .creases the fluid-chamberbetween the successive vanes as they pass the discharge ports thuscompressing and expelling fluid into these ports, and then increasing`the fiuid chambers between the 'vanes as they pass the intake port, thusexpanding the fluid into these chambers.

With the foregoing and other objects in view, mv invention consists'inthe combination and arrangement of parts herein disclosed and shown andmore particularly pointed ont in the claims, but it is to beunderstood-that changes in the precise em- -bodiment shown and describedmay be made without departing from the spirit of the invention asclaimed in the claims hereunto appended.

Referring` more particularly to the draw-- ings. in which like referencecharacters indicate the same or siinilaipart-s throughout the views.

Figure l is a vertical longitudinal section of' the pump;

Figure 2 is a vertical section taken at Aright angles to Figm'e l, onthe line 2--2 ot Figure l;

, Figure 3 is a fragmentary section taken on line 3 3 of Figuret;

-Figure .4 is an elevation von the line 4 4 of Figure 2 with' one ofthebea-ringplates removed.

Serial No. 424,916.

Figure 5 is an elevation of the driving `gear assembly.

ln the drawings 1 designates the cylinder or casing of the pump which ispreferably grovided with end plates 2 and 3, said end plates beingsecured to the casing by screws 4f, or other suitable equivalent means.Located in the casing wall are one or more pairs of intake and dischargeports, the intake and discharge' ports being alternately arranged. lnthe embodiment shown. I have indicated two intake ports 5 and 5, and twodischarge ports 6 and 6'. Suitable conduits T lead to the intake portsas shown, said conduits leading' the fluid to the pump from any suitablesource of supply.

The pump is provided with a pair of drive shafts 8 and 9 which are sogeared together that they are driven in unison and drive thesynocket-wheels 10 and 11. These drive .shafts S and 9 are extendedthrough the casing so as to drive a pair of sprockets which areduplicates of the sprockets 10 and ll and arranged on the opposite endof the drive shafts. Each of the duplicate pairs of sprockets drives a.series of rollers l5, at the ends of pivot pins 16 extending across thecasing.

iiounted upon stub shafts 17 at each side of the casing7 are pairs ofidlers 18,4

rf see Figures and il), said -idlers being arranged at. both sides ofthe rollers` as Shown in Figure et. It is to be noted that the pitchlines of the idlers are not in alignment with the 'pitch lines, of thedrive sprockets but are arranged at one side of this line so that theyengage the rollers and move them transversely or inwardly ot said lineas they leave the drive sprockets, fora purpose to be hereinafterdescribed.

Arranged within thel casting and mounted on the pins 1G are a seriesofirigid impeller runes or blades the bases ot these Yanes beingoil'set` as at i9, so as to form links exteni'ling rearwardly of thedirection of travel of the vanes, each of the vanos being pivotallysecured to adjacent pivot pins at two parallel spaced axes, one neareach oi" the ends of the offset bases'or links. These ofi?- set basesarealso formed with'cutaway or recessed portions at their ends so as tointerslock with the cutaway ends of adjacent vanes` as shown in Figure2, wherein 20 indicates the oii'set portions of one vane and 21 indi-Cates the mating. or interlocking portionsof ers are engaged by saididler' to tilt the vanes intermediate the drivers and bringing themtogether to expel the fluid between them.

2. In a device of the kind described and in combination, a casing havingintake and discharge ports, a series of spaced link-iinpeller vanes vinsaid casing, pivot pins pivotally connecting said vanes to each other,rollers on said pins, a pair of drivers en-v gageable with said rollersto drive said link-impeller vanes, an idler in the path of said rollersintermediate the drivers and havingits pitch line out of alignment withthe pitch lines of lthe driveis, whereby the rollers are engaged by saididler to tilt the vanesl intermediate the drivers and positively movethem transversely of said' idler, whereby the free ends of said vanesare brought toward each other to expel the fluid between them.

3. In a device of thekind described and in combination, a casing, aseries of spaced impeller vanes pivotally linked together in saidcasing, an intake port for admitting fluid into the spaces between saidvanes, an outlet port, a pair of drivers, an idler between saidv pair ofdrivers, drive rollers on said linked vanes, said rollers being actuatedby said drivers and engageable with said idler, said idler being out ofalignment with said drivers, whereby the rollers are positively movedtransversely to said alignment line and causing the vanes to movetransversely to said line, whereby said vanes are brought toward eachother to expel the fluid between them.

4. In a device of the character rdescribed and in combination, a casinghaving a series of intake and discharge ports alternately arrangedtherein, a series of impeller vanes in said casing movable continuouslypast said yports in sequence, and separate means for positively movingthe vanes to decrease the spaces between adjacent vanes at saiddischarge ports.

5. In a device of the kind described and in combination,l a casing, aseries of spaced iinpeller vanes in said casing, `each of said vaneshaving a baseofi'set therefrom, backing members secured to the vback ofeach of said vanesI and converging to the tips of said vanes, an intakeport for admitting fluid .into the spaces between each of said vanes,and the backing member of the adjacent vane, an outlet port, means foractuating said vanes whereby they are moved toward each other at saiddischarge port to expel the fluid between them into said discharge port.

6. In a device of the kind described'and outlet port, a pair of pinionsfor driving l said link-impellers past said ports, and separate meansintermediate said pinions and positively engaging said chain to decreasethe spaces between said impellers at said outlet port. i

7. In a device of the kind described and in combination, a casing havingan intake anda discharge port therein, a series of link-impellers insaid casing, linked together to form a continuous chain, means fordriving said linkimpellers past said ports in sequence, and means fordecreasing the space between at said discharge port, said casing havingan inwardly projecting convex portion engageable with said impeller tipsat said discharge ports.

8. In a device of the kind described and in lcombination, a casinghavingan intake and a discharge port therein, a series of link-impellers insaid casing, linked together to form a continuous chain, a pairof'spaced driving pinions drivingly engageable with said link-impellersto drive them past said ports in sequence, said pinions spaced apart asulicient dist-ance so that said impellers are free of engagement with-said pinions at said discharge port, and `means independent of saiddriving pinions for decreasing the space between adjacent impellers atsaid discharge port.

9. In a device of the kind described and incombination, a casing havingan intake and a discharge port therein, a series of link-impellers Ainsaid casing pivotally linked together to form a continuous chain, eachlink-impeller comprising a vane portion with a link-portion baseextending transversely of said vane'portion, means for driving saidlink-impellers past said ports in sequence, and means for rocking saidim-l pellers on their pivotal axes at said discharge port to decrease`the space between Y the adjacent vanes, the tips of said vanes beingarrangedto extend forwardly in the directionv of travel beyond either ofsaid pivotal axesy of the bases of said impellers.

In' testimony whereof, I have hereunto signed my name in the presenceof' two subscribing witnesses.

Witnesses:

SALEM LEON SCHLEPPY. ROY W. HILL, BERTHA HARTMANN'.

adjacent impellers

